Progression of fetal heart disease and rationale for fetal intracardiac interventions

Area of Science:

• Cardiology
• Fetal Medicine
• Congenital Heart Disease

Background:

• Congenital heart disease diagnosed prenatally often has worse outcomes than postnatal diagnoses.
• Fetal screening identifies advanced cases with cardiac growth failure, myocardial damage, and potential brain/lung injury.

Purpose of the Study:

• To evaluate the potential of fetal cardiac interventions to improve outcomes in congenital heart disease.
• To assess the efficacy of fetal valvuloplasty and atrial septostomy in managing critical fetal cardiac conditions.

Main Methods:

• Fetal valvuloplasty for critical aortic/pulmonary stenosis or atresia.
• Atrial septostomy for restrictive foramen ovale in complex congenital heart disease.
• Monitoring fetal cardiopulmonary development and hydrops.

Main Results:

• Fetal therapy aimed to restore forward flow and reduce intraventricular pressure, enhancing coronary perfusion.
• Successful interventions reduced systemic venous pressures and reversed fetal hydrops, prolonging pregnancy.
• Observed improvements in ventricular growth and spontaneous foramen ovale opening suggest enhanced fetal cardiopulmonary development.

Conclusions:

• Fetal cardiac interventions show promise in improving fetal cardiopulmonary development.
• These interventions may lead to better surgical outcomes for infants with congenital heart disease.
• Restoring forward flow and reducing pressure in utero can mitigate ischemic damage and improve fetal cardiac function.